Disk attachment.



S H. TINSMAN.

DISK ATTACHMENT.

APPLICATION FILED MAR. 5. 1913.

1 ,1 85,857 I Pdtepted June 6, 1916,

THE COLUMBIA PLANOGRAPH cm, WASHINGTON, D. c.

f. STATES PATENT OFFIQE,

SAMUEL H. TINSMAN, OF MORRIS, ILLINOIS, ASS-IGNOR, IBY MESNE ASSIGNMENTS, 'I'O INTERNATIONAL HARVESTER CORPORATION, A CORPORATION OF NEW-JERSEY.

' nIsK h'rrAcHt/IENr.

the like.

Further objects of my invention are to attach the disk to its support in an improved manner, to increase the facility .of assembly and removal of the parts, to prevent the entry of dirt or grit into the bearing surfaces thereof, and to improve andsiinplify the construction of the cl-iskbearing andits supporting'and attaching means a i I- attain these objects by providing an improved disk support and an improved hearing member cooperating therewith and with the disk, and attached tothe disksupport in an improved manner.

In order to disclose my invention clearly and fully, I have illustrateds one embodiment thereof in the accompanying drawings. It is to be understood, however, that the construction shown herein is susceptible of modification. 1 H

Figure 1 is an end elevation of the disk attached to its support;- Fig. 2 is a similar view showing the disk, its -bearings,-'and its attaching means in section; Fig. 3 is:a top plan view of one of-the means for attaching the disk to its support; Fig. 4 is a side elevation of the same; Fig. 5 is a top planrview of the diskbearingmember; Fig. 6 is an end elevation of the same. I

The construction shown, when broadly considered, comprises a disk support 1 adapted to be carried-in anysuitable manner upon a frame of anydesired-construction and carrying upon its -lower end a.- disk 2 in an improved manner, hereinafter described.

The support or shank 1, as shown in Fig. 2, is preferably of integral, construction and of" cylindrical crossmsection. As shown herein, it is provided at'itszlower endwith a laterally extending: angularlydisposed elbow or arm 3 protruding. substantially at an angle of 70 from the body portion there- Speoi fieation of Letters Iatent.

Patented June 6, 1916.

Application as math 5, ie1a Serial No. 759,171.

of and in an upward direction. Upon this elbow or arm, S'is seated the bearing member 4: carrying the disk 2. This bearing member islikewise preferably of integral construction and is provided with an elongated ,longitudnally extending bore 5 I of cylindrical cross section adapted-to receive the extension 3 on the shank 1 and be freely rotatable thereon. v w i As-shown in Fig. 2, the end of the bearing 4: adjacent the bodyuportionof thereupportlyis enlarged and provided with an annular shoulder .6 adapted to be received in a circular opening in the center of the .disk 2. The disk'itself is attached to this than the shoulder 6 ;a second annular flange Sbeing provided upon the periphery thereof 1 forta purpose hereinafter described As shown in .Figs. 2 and 5, the end of the bear: ing member .4 adjacent the support 1 is slightly rounded at 9. Cooperating with thisbearing member 4 and adapted to fit over the flange 8 thereon tot-lock the member etc the support in such a manner as topermit the free rotation of the bearing, is a removable attaching member 10. This attaching member 10 is shown to be provided with asradially extending perforated lug 11" at the back of. the same whichis adapted, to be moved freely up and down upon the b'ody portion 1 of the support 1 w -As shown in Figs.- 3 and 4, the body portion of this member 10 is substantially semicylindrical in cross section, and of larger diameter than the flange 8 upon the bearing member 4. His further provided with an inwardly dished recess 12' adapted to receive the rounded end 9 of the bearing member, andra short downwardly extending ansurface of the enlarged end of thebearing fadjacent the samesvIn order to facilitate themovement of the parts and allow a-more compact construction, the-portion of the against accidental movement on the shank satisfactory angle to give the desired tilling effect. The parts of the attachment are further readily assembled by first slipping the bearin member a earr i11 the disk 2 u on the end 3 of the support 1 and then sliding the attaching member 10 downwardly on the support 1 until it straddles the portion 3 thereof and its lip 13 incloses the flange 8 on the bearing. To remove the parts it is obviously only necessary to move the looking member 10 upward to release the bearing member so that the latter maybe withdrawn. In this assembled position, it is to be noted that both the disks 2 and the bearing a are freely rotatable upon the portion 3 of the support and that the thrust is so taken upon the end of the extension thereon as to entirely remove any thrust upon the vertical portion of the support and to eliminate the necessity for a collar thereon. Obviously, by placing grease or any other suitable lubricant in the bore or chamber 5 of the bearing member, the bearing surfaces may be lubricated to the desired degree without making it necessary to replenish the supply except at long intervals. It is here also to be noted that by my improved construction of bearing member, I am able to eliminate not only all protruding oil cups and the like, but am also able to eliminate all possibility of grit or dust entering the bearing from above. Attention is further directed to the fact that the attaching member 10 not only serves to permit the parts to be readily assembled or separated when desired, but at the same time serves to deflect the dirt or grit from the bearing surfaces which it straddles. It is further to be noted that in this construction no dirt can enter the bearing from the support 1 since it is not only deflected by the attaching member 10 but is also unable to climb upward toward the bearing on the upwardly disposed end of the support 1 in opposition to the pull of gravity. Further, if any dirt should happen to be thrown upward on the elbow 3, it will likewise be quickly dislodged from the rounded surface thereof by the vibration of the machine as it moves over the ground.

On account of the angle of the axle with respect to the shank portion, the disk in operation will be forced toward the shank, with the result that a greater portion, if not all, of the wear and strain will be thrown on the end ofthe axle and its engaging hub portion. The action of the disk, therefore, in tilling is to work inwardly on the axle and not outwardly as in devices heretofore used. With this construction I am enabled to maintain the disk in proper position at alltimes without the necessity of employing permanent fasteners for the locking member. This is so because of the relative positions of the member 10 with respect to the flanged hub portion of the disk. Obviously, in order to raise the locking member it is necessary that the disk be moved slightly outward on its axle, and this movement will be prevented when in operation by engagement of the disk in the ground. It is only during the operative periods of the disk that the locking member is susceptible to displacement, and this is because of the action of clods of dirt and other obstructions in the field striking against it. At any other time gravity and frictional engagement are suflicient to cause the locking member to remain in place and thus prevent the disk from working off. The disk, therefore, becomes readily demountable for sharpening or substitution purposes without attention on the part of the operator to permanent fasteners of any kind.

While I have described in this application one form of my invention, it is of course to be understood that the embodiment thereof shown herein for purposes of illustration'is susceptible of modification without departing from its spirit.

l i hat I claim as my invention, and desire to secure by Letters atent, is:

1. In a disk attachment, a vertical shank having an extension protruding therefrom at an acute angle, a disk rotatably mounted on said extension in a manner to automatically retain its position thereon when in op eration, and a locking member for said disx carried on the shank and pressed between the shank and disk.

2. In a disk attachment, a vertical support, an extension protruding therefrom, a rotatable member inclosing one end of said extension, a disk carried on said rotatable member, a flanged member on the inner end of said rotatable member, and a locking member on the vertical support to engage with the flanged member for holding the disk in position, said locking member in turn being held in locked position by its cooperating members.

3. In a disk attachment, a vertical support, an extension protruding therefrom at an acute angle, a rotatable member on said extension, a disk carried on the rotatable member in position to be forced inwardly when in operation, a flanged hub on the innerside of the disk, and means mounted on said supportto engage with the flanged hub and hold it against outward movement, said holding means in turn being held by its associated members.

4. In a disk attachment, a vertical support, an extension thereon, a rotatable member inclosing one end of said extension, a

disk on said rotatable member, and means movable along said support for locking said rotatable member against separation and held automatically in locked position when said disk is in operation.

5. In a disk attachment, a shank having an extension protruding at an angle thereto, a bearing member rotatably mounted on said extension, and an attaching member movable on said shank and locking said bearing member thereto, said attaching member when looking said bearing member in position automatically locking itself against accidental movement on said shank.

6. In a disk attachment, a shank having an extension protruding therefrom, a bearing member rotatably mounted on said extension and having an enlarged portion adjacent said shank, a disk carried on said bearing member, and an attaching member freely movable along said shank to engage with said bearing member for locking the same on said extension and automatically held in locked position when said disk is in operation;

7. In a disk attachment, a shank having an extension protruding at an angle therefrom, a rotatable member carried on said extension and inclosing one end of same, a disk carried on said rotatable member and operating in a manner to confine the frictional engagement between the extension and rotatable member to the ends thereof and a locking member to engage with the rotatable member movable on the shank and nor-. mally held pressed between the rotatable member and the shank.

8. In a disk attachment, a vertical shank having an extension protruding therefrom at an angle less than a right angle, a bearing member on said extension inclosing one end of same, and a disk carried on said bearing member and forced inward when in operation, and a locking member carried on the shank and positioned normally between the shank and bearing member and held there by said shank and bearing member under I certain conditions. 7

9. In a disk attachment, a vertical support, an axle on said support, a bearing member carried on said axle and having an enlarged flanged portion on its inner end, a

disk on said bearing portion, and a locking member on saidsupport for holding said and itself held against movement by frictional engagement between said support and 1 the flanged end of the bearing member.

11. In a disk attachment, a support,'a disk carrying bearing member mounted thereon, and a locking member, said support, bearing and locking members mutually interlocking each other under certain conditions.

Chicago, 111., Feb. 21, 1913.

In testimony whereof I aflix my signature, in the presence of two witnesses.

SAMUEL H. TINSMAN.

Witnesses: V F. W; HorFMErsTEn, H. C. ROCKWELL.

Coples of this patent may be obtained for five cent: each, by addressing the "Commissioner of Patents,

Washington, D. G. 

